Question

write about The major events in the evolution of universe, beginning with the tiniest fractions of a second after the Big Bang?

Answer 1

Planck Epoch (the primary 5.39 x 10^-44 seconds after the enormous Bang) activities (if any) taking place inside this time have to necessarily stay pure hypothesis. Grand Unification Epoch (10^-forty three to 10^-36 seconds) the drive of gravity separates from the other fundamental forces, and the primary elementary particles are created. Inflationary Epoch (10^-36 to 10^-32 seconds) the universe undergoes an extremely speedy exponential growth, often called cosmic inflation, and any existing particles emerge as very thinly disbursed. Electroweak Epoch (10^-36 to 10^-12 seconds) the robust nuclear drive separates from the opposite two forces (electromagnetism and gravity), and particle interactions create big numbers of individual particles, including W and Z bosons and Higgs bosons. Quark Epoch (10^-12 to 10^-6 seconds) the four predominant forces expect their present types, and quarks, electrons and neutrinos form in enormous numbers as the universe cools off to beneath 10 quadrillion levels (although most quarks and antiquarks annihilate each different upon contact, a surplus of quarks survives, so we can ultimately combine to type topic). Hadron Epoch (10^-6 seconds to 1 second) the universe cools to about a trillion levels, allowing quarks to combine to kind hadrons like protons and neutrons, and electrons colliding with protons fuse to form neutrons and give off massless neutrinos. Lepton Epoch (1 to 10 seconds) most (however no longer all) hadrons and antihadrons annihilate each and every other, and leptons equivalent to electrons and positrons dominate the mass of the universe. Nucleosynthesis (three minutes to 20 minutes) the temperature of the universe falls to about a billion degrees, in order that atomic nuclei can begin to kind as protons and neutrons fuse to form the nuclei of the straightforward factors of hydrogen, helium and lithium. Photon Epoch (10 seconds to about 240,000 years) the universe is filled with plasma, a scorching opaque soup of atomic nuclei and electrons, and the power of the universe is dominated through photons, which continue to have interaction traditionally with the charged protons, electrons and nuclei. Recombination/Decoupling (about 240,000 to 300,000 years) the temperature of the universe falls to around 3,000 levels, and ionized hydrogen and helium atoms capture electrons, neutralizing their electric charge and binding them inside atoms; the universe finally becomes obvious to light, making this the earliest epoch possibly observable in these days. dark Age or generation (about 300,000 to a hundred and fifty million years) the universe is literally dark, with no stars having fashioned to give off gentle; simplest very diffuse subject remains, and all recreation tails off dramatically, with the universe dominated via mysterious dark subject Reionization Epoch (about a hundred and fifty million to about 1 billion years) the first quasars kind from gravitational give way, and their severe radiation reionizes the surrounding universe, which matches from being neutral again to being composed of ionized plasma celebrity and Galaxy Formation (300 to500 million years onwards) small, dense clouds of cosmic fuel begin to break down beneath their own gravity, unless they set off nuclear fusion reactions between hydrogen atoms and create the very first stars, which gradually cluster into galaxies. solar procedure Formation (eight.5 9 billion years after the huge Bang) our sun, a late-new release superstar incorporating the debris from generations of previous stars, and the sunlight system around it, type roughly 4.5 to five billion years ago.